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A fiber optic sensor for determining the presence and/or measuring the depth of a first substance capable of transmitting light. The fiber optic sensor includes a plurality of light receiving fibers, a plurality of light transmitting fibers surrounding the light receiving fibers and structure for refracting light from the light transmitting fibers at a predetermined angle for total internal reflection of the light from an interface of the first substance with a second substance.
Board of Control of Michigan Technological University, Houghton, Mich.
Certificate of Correction
Electrical and Computer Engineering | Engineering | Mechanical Engineering
Evers, Lawrence W. and Jackson, Kenneth J., "Fiber optic detector and depth sensor and method for doing same" (1995). Michigan Tech Patents. 74.